I live on a modern development (can't call them housing estates any more) that was built in 1994. The streets wind about in a higgledy-piggledy manner, which means that there are no rows of houses such as those that I was brought up in. That means that no house is actually close to its neighbours, and I think that kind of layout has contributed to a lack of "neighbourliness". My wife and I have friendly neighbours on one side, but on the other side of us we have a youngish couple who keep themselves to themselves. So we rarely see them, even though their drive is next to ours. As for the rest of the neighbours (we live at the closed end of a cul-de-sac), well, sometimes they wave as they go past in their cars, but that's about it. So, we have neighbours who are quiet, and don't cause any hassle, but we don't know them well.